The MotionSense hands-free faucet is designed with sensors that detect movement in two zones. Waving a hand above the spout starts and stops the water flow; the Ready Sensor turns the faucet on when an object is present; or simply use the side handle as you would for any other unit. It uses six standard AA batteries or can be wired for AC power. Cost: $625 to $692. Moen. 800-289-6636.www.moen.com.